./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac03fde86830071a4c6b2e5721972db0abe9813dd0e80632e775695a294f996c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:44:22,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:44:22,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:44:22,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:44:22,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:44:22,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:44:22,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:44:22,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:44:22,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:44:22,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:44:22,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:44:22,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:44:22,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:44:22,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:44:22,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:44:22,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:44:22,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:44:22,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:44:22,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:44:22,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:44:22,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:44:22,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:44:22,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:44:22,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:44:22,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:44:22,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:44:22,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:44:22,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:44:22,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:44:22,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:44:22,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:44:22,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:44:22,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:44:22,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:44:22,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:44:22,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:44:22,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:44:22,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:44:22,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:44:22,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:44:22,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:44:22,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:44:22,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:44:22,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:44:22,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:44:22,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:44:22,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:44:22,602 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:44:22,602 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:44:22,602 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:44:22,603 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:44:22,603 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:44:22,603 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:44:22,604 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:44:22,604 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:44:22,604 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:44:22,604 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:44:22,605 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:44:22,605 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:44:22,605 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:44:22,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:44:22,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:44:22,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:44:22,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:44:22,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:44:22,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:44:22,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:44:22,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:44:22,609 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:44:22,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:44:22,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:44:22,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:44:22,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:44:22,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:44:22,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:44:22,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:44:22,611 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:44:22,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:44:22,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:44:22,612 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:44:22,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:44:22,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:44:22,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:44:22,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac03fde86830071a4c6b2e5721972db0abe9813dd0e80632e775695a294f996c [2022-11-23 14:44:22,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:44:22,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:44:22,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:44:22,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:44:22,931 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:44:22,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c [2022-11-23 14:44:26,328 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:44:26,862 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:44:26,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c [2022-11-23 14:44:26,884 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/data/9fb4c9e81/9ec57049e77d4c13bb99ddacd590322a/FLAG4744a6bec [2022-11-23 14:44:26,908 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/data/9fb4c9e81/9ec57049e77d4c13bb99ddacd590322a [2022-11-23 14:44:26,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:44:26,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:44:26,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:44:26,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:44:26,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:44:26,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:26" (1/1) ... [2022-11-23 14:44:26,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46283a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:26, skipping insertion in model container [2022-11-23 14:44:26,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:26" (1/1) ... [2022-11-23 14:44:26,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:44:27,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:44:27,568 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c[14691,14704] [2022-11-23 14:44:27,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:44:27,864 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:44:27,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c[14691,14704] [2022-11-23 14:44:28,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:44:28,106 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:44:28,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28 WrapperNode [2022-11-23 14:44:28,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:44:28,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:44:28,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:44:28,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:44:28,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,270 INFO L138 Inliner]: procedures = 133, calls = 225, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1120 [2022-11-23 14:44:28,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:44:28,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:44:28,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:44:28,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:44:28,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:44:28,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:44:28,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:44:28,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:44:28,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (1/1) ... [2022-11-23 14:44:28,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:44:28,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:28,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:44:28,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:44:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-23 14:44:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-23 14:44:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-23 14:44:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-23 14:44:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:44:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:44:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-23 14:44:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-23 14:44:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:44:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:44:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 14:44:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 14:44:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:44:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:44:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 14:44:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 14:44:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:44:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:44:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:44:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 14:44:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 14:44:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-23 14:44:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-23 14:44:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:44:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:44:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:44:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 14:44:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 14:44:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-23 14:44:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-23 14:44:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:44:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:44:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:44:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:44:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:44:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:44:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:44:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:44:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:44:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:44:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:44:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:44:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:44:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:44:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:44:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-23 14:44:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-23 14:44:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:44:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:44:28,733 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:44:28,743 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:44:29,782 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:44:30,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:44:30,450 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:44:30,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:44:30 BoogieIcfgContainer [2022-11-23 14:44:30,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:44:30,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:44:30,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:44:30,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:44:30,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:44:26" (1/3) ... [2022-11-23 14:44:30,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0fee60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:44:30, skipping insertion in model container [2022-11-23 14:44:30,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:28" (2/3) ... [2022-11-23 14:44:30,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0fee60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:44:30, skipping insertion in model container [2022-11-23 14:44:30,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:44:30" (3/3) ... [2022-11-23 14:44:30,469 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product27.cil.c [2022-11-23 14:44:30,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:44:30,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:44:30,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:44:30,572 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70954525, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:44:30,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:44:30,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-23 14:44:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 14:44:30,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:30,596 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:30,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:44:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1431102340, now seen corresponding path program 1 times [2022-11-23 14:44:30,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:30,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291060675] [2022-11-23 14:44:30,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:30,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:44:31,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:31,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291060675] [2022-11-23 14:44:31,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291060675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:31,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:31,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:44:31,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647722211] [2022-11-23 14:44:31,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:31,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:44:31,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:31,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:44:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:44:31,126 INFO L87 Difference]: Start difference. First operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:44:31,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:31,336 INFO L93 Difference]: Finished difference Result 290 states and 389 transitions. [2022-11-23 14:44:31,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:44:31,338 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 60 [2022-11-23 14:44:31,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:31,355 INFO L225 Difference]: With dead ends: 290 [2022-11-23 14:44:31,355 INFO L226 Difference]: Without dead ends: 188 [2022-11-23 14:44:31,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:44:31,369 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:31,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:31,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-23 14:44:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-11-23 14:44:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-23 14:44:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 252 transitions. [2022-11-23 14:44:31,465 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 252 transitions. Word has length 60 [2022-11-23 14:44:31,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:31,467 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 252 transitions. [2022-11-23 14:44:31,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:44:31,469 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 252 transitions. [2022-11-23 14:44:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 14:44:31,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:31,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:31,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:44:31,484 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:44:31,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:31,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1261232434, now seen corresponding path program 1 times [2022-11-23 14:44:31,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:31,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897207792] [2022-11-23 14:44:31,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:31,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:44:31,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:31,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897207792] [2022-11-23 14:44:31,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897207792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:31,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:31,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:44:31,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108363873] [2022-11-23 14:44:31,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:31,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:31,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:31,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:31,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:31,786 INFO L87 Difference]: Start difference. First operand 188 states and 252 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:44:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:31,929 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2022-11-23 14:44:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:31,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-11-23 14:44:31,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:31,932 INFO L225 Difference]: With dead ends: 286 [2022-11-23 14:44:31,932 INFO L226 Difference]: Without dead ends: 190 [2022-11-23 14:44:31,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:31,935 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:31,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-23 14:44:31,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-11-23 14:44:31,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.275229357798165) internal successors, (139), 111 states have internal predecessors, (139), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-23 14:44:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 254 transitions. [2022-11-23 14:44:31,955 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 254 transitions. Word has length 61 [2022-11-23 14:44:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:31,955 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 254 transitions. [2022-11-23 14:44:31,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:44:31,956 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2022-11-23 14:44:31,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 14:44:31,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:31,959 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:31,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:44:31,959 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:44:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash -433821520, now seen corresponding path program 1 times [2022-11-23 14:44:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:31,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837651503] [2022-11-23 14:44:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:31,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:44:32,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:32,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837651503] [2022-11-23 14:44:32,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837651503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:32,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:32,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:44:32,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559413367] [2022-11-23 14:44:32,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:32,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:32,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:32,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:32,146 INFO L87 Difference]: Start difference. First operand 190 states and 254 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:44:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:32,333 INFO L93 Difference]: Finished difference Result 415 states and 575 transitions. [2022-11-23 14:44:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:32,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2022-11-23 14:44:32,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:32,337 INFO L225 Difference]: With dead ends: 415 [2022-11-23 14:44:32,337 INFO L226 Difference]: Without dead ends: 243 [2022-11-23 14:44:32,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:32,347 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 59 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:32,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 435 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:32,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-23 14:44:32,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2022-11-23 14:44:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 145 states have internal predecessors, (194), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-23 14:44:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 337 transitions. [2022-11-23 14:44:32,379 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 337 transitions. Word has length 66 [2022-11-23 14:44:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:32,379 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 337 transitions. [2022-11-23 14:44:32,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:44:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 337 transitions. [2022-11-23 14:44:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 14:44:32,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:32,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:32,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:44:32,383 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:44:32,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:32,384 INFO L85 PathProgramCache]: Analyzing trace with hash 132415004, now seen corresponding path program 1 times [2022-11-23 14:44:32,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:32,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992346949] [2022-11-23 14:44:32,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:32,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:44:32,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:32,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992346949] [2022-11-23 14:44:32,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992346949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:32,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600315751] [2022-11-23 14:44:32,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:32,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:32,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:32,557 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:32,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:44:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:32,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:44:32,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:33,078 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:44:33,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:44:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:44:33,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600315751] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:44:33,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [139723297] [2022-11-23 14:44:33,241 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-23 14:44:33,242 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:44:33,247 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:44:33,257 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:44:33,258 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:45:09,483 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:45:09,799 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:45:10,129 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 257 for LOIs [2022-11-23 14:45:12,168 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2022-11-23 14:45:12,210 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2022-11-23 14:45:16,020 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 267 for LOIs [2022-11-23 14:45:19,144 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 249 for LOIs [2022-11-23 14:45:19,177 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 249 for LOIs [2022-11-23 14:45:19,220 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-23 14:45:24,319 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 240 for LOIs [2022-11-23 14:45:24,365 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:45:37,670 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:45:43,572 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:46:02,185 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 482 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:46:13,357 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 504 DAG size of output: 322 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:46:19,948 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 514 DAG size of output: 294 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:46:25,488 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 567 DAG size of output: 323 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:46:33,437 WARN L233 SmtUtils]: Spent 7.62s on a formula simplification. DAG size of input: 569 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:46:40,379 WARN L233 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 569 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:46:47,361 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification. DAG size of input: 567 DAG size of output: 357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:46:58,732 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 477 DAG size of output: 273 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:47:05,539 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 499 DAG size of output: 277 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:47:50,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [139723297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:50,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:47:50,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [4, 4, 4] total 54 [2022-11-23 14:47:50,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545872813] [2022-11-23 14:47:50,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:50,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-23 14:47:50,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:50,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-23 14:47:50,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2715, Unknown=0, NotChecked=0, Total=2862 [2022-11-23 14:47:50,188 INFO L87 Difference]: Start difference. First operand 238 states and 337 transitions. Second operand has 49 states, 32 states have (on average 1.0625) internal successors, (34), 29 states have internal predecessors, (34), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:48:50,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:50,883 INFO L93 Difference]: Finished difference Result 636 states and 969 transitions. [2022-11-23 14:48:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-23 14:48:50,889 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 32 states have (on average 1.0625) internal successors, (34), 29 states have internal predecessors, (34), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 67 [2022-11-23 14:48:50,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:50,893 INFO L225 Difference]: With dead ends: 636 [2022-11-23 14:48:50,907 INFO L226 Difference]: Without dead ends: 416 [2022-11-23 14:48:50,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 173.8s TimeCoverageRelationStatistics Valid=202, Invalid=3580, Unknown=0, NotChecked=0, Total=3782 [2022-11-23 14:48:50,911 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 294 mSDsluCounter, 5291 mSDsCounter, 0 mSdLazyCounter, 7380 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 5550 SdHoareTripleChecker+Invalid, 7424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 7380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:50,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 5550 Invalid, 7424 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [44 Valid, 7380 Invalid, 0 Unknown, 0 Unchecked, 31.9s Time] [2022-11-23 14:48:50,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-11-23 14:48:51,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 310. [2022-11-23 14:48:51,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 196 states have (on average 1.3520408163265305) internal successors, (265), 199 states have internal predecessors, (265), 84 states have call successors, (84), 31 states have call predecessors, (84), 29 states have return successors, (84), 79 states have call predecessors, (84), 83 states have call successors, (84) [2022-11-23 14:48:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 433 transitions. [2022-11-23 14:48:51,076 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 433 transitions. Word has length 67 [2022-11-23 14:48:51,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:51,077 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 433 transitions. [2022-11-23 14:48:51,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 32 states have (on average 1.0625) internal successors, (34), 29 states have internal predecessors, (34), 15 states have call successors, (15), 10 states have call predecessors, (15), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:48:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 433 transitions. [2022-11-23 14:48:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-23 14:48:51,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:51,080 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:51,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:51,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:48:51,288 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:51,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:51,288 INFO L85 PathProgramCache]: Analyzing trace with hash 58796477, now seen corresponding path program 1 times [2022-11-23 14:48:51,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:51,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664381439] [2022-11-23 14:48:51,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:51,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:48:51,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:51,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664381439] [2022-11-23 14:48:51,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664381439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:51,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:51,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:48:51,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11730776] [2022-11-23 14:48:51,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:51,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:48:51,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:48:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:48:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:48:51,447 INFO L87 Difference]: Start difference. First operand 310 states and 433 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:48:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:51,831 INFO L93 Difference]: Finished difference Result 722 states and 1046 transitions. [2022-11-23 14:48:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:48:51,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 72 [2022-11-23 14:48:51,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:51,837 INFO L225 Difference]: With dead ends: 722 [2022-11-23 14:48:51,837 INFO L226 Difference]: Without dead ends: 438 [2022-11-23 14:48:51,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:48:51,839 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 57 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:51,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 450 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:48:51,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-11-23 14:48:52,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 431. [2022-11-23 14:48:52,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 286 states have (on average 1.416083916083916) internal successors, (405), 289 states have internal predecessors, (405), 115 states have call successors, (115), 31 states have call predecessors, (115), 29 states have return successors, (115), 110 states have call predecessors, (115), 114 states have call successors, (115) [2022-11-23 14:48:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 635 transitions. [2022-11-23 14:48:52,103 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 635 transitions. Word has length 72 [2022-11-23 14:48:52,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:52,104 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 635 transitions. [2022-11-23 14:48:52,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:48:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 635 transitions. [2022-11-23 14:48:52,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-23 14:48:52,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:52,107 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:52,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:48:52,108 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash 914473862, now seen corresponding path program 1 times [2022-11-23 14:48:52,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:52,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722671311] [2022-11-23 14:48:52,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:52,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:48:52,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:52,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722671311] [2022-11-23 14:48:52,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722671311] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:48:52,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315112334] [2022-11-23 14:48:52,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:52,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:48:52,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:48:52,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:48:52,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:48:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:52,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:48:52,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:48:52,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:48:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:48:52,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315112334] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:48:52,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [286413870] [2022-11-23 14:48:52,696 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-23 14:48:52,697 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:48:52,697 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:48:52,698 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:48:52,698 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:49:41,426 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-23 14:49:41,760 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-11-23 14:49:42,095 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:49:55,516 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:01,098 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:07,406 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 450 DAG size of output: 245 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:12,683 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 473 DAG size of output: 265 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:23,294 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 482 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:34,490 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 504 DAG size of output: 322 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:41,001 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 514 DAG size of output: 294 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:59,508 WARN L233 SmtUtils]: Spent 18.19s on a formula simplification. DAG size of input: 583 DAG size of output: 446 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:22,571 WARN L233 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 581 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:37,274 WARN L233 SmtUtils]: Spent 9.31s on a formula simplification. DAG size of input: 584 DAG size of output: 394 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:37,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [286413870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:51:37,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:51:37,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-23 14:51:37,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655571139] [2022-11-23 14:51:37,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:51:37,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 14:51:37,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:51:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 14:51:37,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:51:37,500 INFO L87 Difference]: Start difference. First operand 431 states and 635 transitions. Second operand has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-23 14:51:52,561 WARN L233 SmtUtils]: Spent 13.30s on a formula simplification. DAG size of input: 540 DAG size of output: 379 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:17,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:17,670 INFO L93 Difference]: Finished difference Result 836 states and 1271 transitions. [2022-11-23 14:52:17,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 14:52:17,671 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 73 [2022-11-23 14:52:17,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:17,677 INFO L225 Difference]: With dead ends: 836 [2022-11-23 14:52:17,678 INFO L226 Difference]: Without dead ends: 516 [2022-11-23 14:52:17,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 144.6s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 14:52:17,680 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 247 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:17,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 3022 Invalid, 1957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-11-23 14:52:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-11-23 14:52:17,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 461. [2022-11-23 14:52:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 314 states have (on average 1.4203821656050954) internal successors, (446), 317 states have internal predecessors, (446), 116 states have call successors, (116), 32 states have call predecessors, (116), 30 states have return successors, (116), 111 states have call predecessors, (116), 115 states have call successors, (116) [2022-11-23 14:52:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 678 transitions. [2022-11-23 14:52:17,990 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 678 transitions. Word has length 73 [2022-11-23 14:52:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:17,991 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 678 transitions. [2022-11-23 14:52:17,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-23 14:52:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 678 transitions. [2022-11-23 14:52:17,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-23 14:52:17,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:17,994 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:18,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:52:18,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:52:18,204 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:18,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:18,205 INFO L85 PathProgramCache]: Analyzing trace with hash -31197085, now seen corresponding path program 1 times [2022-11-23 14:52:18,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:18,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111152449] [2022-11-23 14:52:18,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:18,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:52:18,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:18,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111152449] [2022-11-23 14:52:18,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111152449] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:52:18,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277265186] [2022-11-23 14:52:18,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:18,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:52:18,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:52:18,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:52:18,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:52:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:18,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:52:18,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:52:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:52:18,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:52:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:52:18,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277265186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:52:18,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [676012616] [2022-11-23 14:52:18,943 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-11-23 14:52:18,944 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:52:18,944 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:52:18,945 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:52:18,945 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:54:39,067 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:54:39,380 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 434 for LOIs [2022-11-23 14:54:39,702 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 453 for LOIs [2022-11-23 14:54:40,054 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 233 for LOIs [2022-11-23 14:54:40,126 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:54:40,435 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:54:53,468 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:54:58,944 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:17,600 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 482 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:29,048 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 504 DAG size of output: 322 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:35,709 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 514 DAG size of output: 294 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:59,409 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 569 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:56:06,351 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 565 DAG size of output: 339 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:56:23,910 WARN L233 SmtUtils]: Spent 8.77s on a formula simplification. DAG size of input: 545 DAG size of output: 373 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:56:43,580 WARN L233 SmtUtils]: Spent 9.61s on a formula simplification. DAG size of input: 526 DAG size of output: 401 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:56:43,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [676012616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:56:43,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:56:43,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-23 14:56:43,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055867820] [2022-11-23 14:56:43,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:56:43,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-23 14:56:43,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:56:43,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-23 14:56:43,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 14:56:43,593 INFO L87 Difference]: Start difference. First operand 461 states and 678 transitions. Second operand has 30 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-23 14:57:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:12,341 INFO L93 Difference]: Finished difference Result 882 states and 1340 transitions. [2022-11-23 14:57:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-23 14:57:12,342 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 76 [2022-11-23 14:57:12,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:12,348 INFO L225 Difference]: With dead ends: 882 [2022-11-23 14:57:12,348 INFO L226 Difference]: Without dead ends: 562 [2022-11-23 14:57:12,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 134.7s TimeCoverageRelationStatistics Valid=156, Invalid=1326, Unknown=0, NotChecked=0, Total=1482 [2022-11-23 14:57:12,350 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 134 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 3261 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:12,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 3447 Invalid, 3277 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 3261 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2022-11-23 14:57:12,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-11-23 14:57:12,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 499. [2022-11-23 14:57:12,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 346 states have (on average 1.4190751445086704) internal successors, (491), 349 states have internal predecessors, (491), 119 states have call successors, (119), 35 states have call predecessors, (119), 33 states have return successors, (119), 114 states have call predecessors, (119), 118 states have call successors, (119) [2022-11-23 14:57:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 729 transitions. [2022-11-23 14:57:12,754 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 729 transitions. Word has length 76 [2022-11-23 14:57:12,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:12,754 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 729 transitions. [2022-11-23 14:57:12,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-23 14:57:12,755 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 729 transitions. [2022-11-23 14:57:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:57:12,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:12,758 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:12,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 14:57:12,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:12,967 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:57:12,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:12,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1755576858, now seen corresponding path program 1 times [2022-11-23 14:57:12,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:12,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841482713] [2022-11-23 14:57:12,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:12,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:57:13,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:13,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841482713] [2022-11-23 14:57:13,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841482713] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:13,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038179475] [2022-11-23 14:57:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:13,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:13,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:57:13,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:57:13,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adf35083-a7e0-447a-aa60-efee82b9b28c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:57:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:13,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:57:13,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:57:13,603 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:57:13,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:57:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:57:13,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038179475] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:57:13,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1369435148] [2022-11-23 14:57:13,701 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-11-23 14:57:13,701 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:57:13,702 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:57:13,702 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:57:13,702 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:58:07,978 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:58:08,284 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:58:08,609 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-11-23 14:58:10,400 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-23 14:58:10,447 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs